The intervention group will be composed of patients who have suffered a stroke and have alterations in mobility, balance and gait. These patients will be selected according to inclusion criteria such as clinical stability and ability to participate in a rehabilitation program. The group will receive structured physiotherapy sessions with a progressive approach to improve postural control, muscle strength, coordination and functional independence.

The intervention will consist of an 8-week motor rehabilitation program, with 3 weekly sessions of 60 minutes each. In the first weeks, joint mobilization and postural control in a sitting position will be worked on, followed by muscle strengthening and balance re-education in a standing position. Subsequently, coordination exercises and assisted walking on different surfaces will be incorporated. In the final phase, independent walking and the integration of functional movements in daily life activities will be encouraged. The program will be adapted to the individual needs of each patient to optimize recovery and improve quality of life.

The Berg Scale is a widely used tool for assessing static and dynamic balance in adults with neuromotor impairments. It consists of 14 items that assess various functional tasks, such as standing, transferring, trunk rotation, and turning gait. Each item is scored on an ordinal scale from 0 to 4, with 0 indicating the lowest functional capacity and 4 indicating independent and safe performance of the task, with a maximum total score of 56 points. Scores below 45 are associated with an increased risk of falls. This scale has demonstrated high interobserver reliability (ICC > 0.95) and concurrent validity in stroke patients.

The Postural Assessment Scale for Stroke Patients (PASS) is specifically designed to assess postural control in stroke patients, both in the acute and chronic phases. It includes 12 items that assess postural maintenance and changes in different positions (recumbent, sitting, and standing). Each item is scored from 0 to 3, with a maximum total score of 36 points. The PASS is particularly sensitive for detecting small functional changes during the early stages of post-stroke recovery and has demonstrated good discriminative and predictive validity for the evolution of postural control and gait. Its use is recom-mended for monitoring clinical progress in the rehabilitation setting.

The Barthel Index is a commonly used instrument for measuring functional inde-pendence in basic activities of daily living (BADL). It assesses a patient's ability to perform 10 activities, including feeding, dressing, toileting, mobility, and climbing and descending stairs, among others. Scoring varies by task, with a maximum of 100 points awarded, with higher scores indicating greater autonomy. The BI is sensitive to clinical changes after rehabilitation interventions and has high reliability (α > 0.90). It is widely used in clinical research with neurological populations, including post-stroke patients.